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Nanomaterials
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Design of Nanostructured Optic and Optoelectronic Devices
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Design of Nanostructured Optic and Optoelectronic Devices

A special issue of Nanomaterials (ISSN 2079-4991). This special issue belongs to the section "Nanoelectronics, Nanosensors and Devices".

Deadline for manuscript submissions: closed (30 November 2021) | Viewed by 7254

Special Issue Editor

Prof. Dr. Caterina Ciminelli

E-Mail Website
Guest Editor
Optoelectronics Laboratory, Electrical and Information Engineering Department, Polytechnic University of Bari, Via Re David, 200, 70125 Bari, Italy
Interests: optoelectronic devices; photonic devices; optical devices; microelectronics; nanoelectronics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Nanostructured materials and top–down fabricated nanostructures have been extensively investigated and developed in the last decades, as their optoelectronic properties have allowed the study, design, and experimental testing of devices with interesting and sometimes unique features in terms of bandwidth, operation speed, efficiency, and energy consumption. The small size also leads to the integration of complex multifunctional systems in different technological platforms, potentially exploitable for large-scale production.

This Special Issue focuses on nano-optic and nano-optoelectronic passive/active devices and their applications in various fields, e.g., telecommunications, space, sensing, and medical, with a particular emphasis on aspects related to their modeling, design, and manufacturing.

Prof. Caterina Ciminelli
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nanomaterials is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Nanostructures
  • Nanomaterials
  • Light–matter interaction
  • Nano-optics
  • Nano-optoelectronics
  • Quantum optoelectronics
  • Nanofabrication
  • Nanomanipulation

Published Papers (3 papers)

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Research

15 pages, 5780 KiB  
Article
Thermally Tunable Orbital Angular Momentum Mode Generator Based on Dual-Core Photonic Crystal Fibers
by Lianzhen Zhang, Xuedian Zhang, Xuejing Liu, Jun Zhou, Na Yang, Jia Du and Xin Ding
Nanomaterials 2021, 11(12), 3256; https://doi.org/10.3390/nano11123256 - 30 Nov 2021
Cited by 1 | Viewed by 1720
Abstract
The combination of mode division multiplexing (MDM) based on orbital angular momentum (OAM) modes with wavelength division multiplexing (WDM) has attracted considerable attention due to its ability to increase optical transmission capacity. However, the switching of the multi-wavelength and multi-order OAM mode in [...] Read more.
The combination of mode division multiplexing (MDM) based on orbital angular momentum (OAM) modes with wavelength division multiplexing (WDM) has attracted considerable attention due to its ability to increase optical transmission capacity. However, the switching of the multi-wavelength and multi-order OAM mode in an all-fiber structure has always been a challenge. As a solution, a thermally tunable dual-core photonic crystal fiber (DC-PCF) is proposed to achieve multi-order and multi-wavelength switching of the OAM mode. The results show that the OAM mode with topological charge m = ±1 can be excited with the linear polarization fundamental mode (LPFM) and circular polarization fundamental mode (CPFM). In addition, the device can effectively excite a high-purity ±1st order OAM mode with wavelengths ranging from 1520 to 1575 nm by thermal tuning. The purity of the mode is in excess of 99%, and the energy conversion efficiency (ECE) is above 95%. The proposed design is expected to be applied in all-fiber communication systems combined with MDM and WDM. Full article
(This article belongs to the Special Issue Design of Nanostructured Optic and Optoelectronic Devices)
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12 pages, 32724 KiB  
Article
Switchable Multifunctional Meta-Surface Composed by Dielectric-Metal Hybrid Antenna Array Architecture
by Yule Huang, Jiaxin Yang, Ying Zhang, Zhongchao Wei, Hongzhan Liu and Jianping Guo
Nanomaterials 2021, 11(11), 2862; https://doi.org/10.3390/nano11112862 - 27 Oct 2021
Cited by 1 | Viewed by 1566
Abstract
Strontium titanate (STO), the dielectric material, has caught the world’s attention due to its outstanding properties, such as high permittivity, high refractive index, and low loss in the terahertz band. Its permittivity is relevant to the environment temperature. Herein, a multifunctional meta-surface composed [...] Read more.
Strontium titanate (STO), the dielectric material, has caught the world’s attention due to its outstanding properties, such as high permittivity, high refractive index, and low loss in the terahertz band. Its permittivity is relevant to the environment temperature. Herein, a multifunctional meta-surface composed of a dielectric-metal hybrid antenna array has been demonstrated, which is a single-layer STO elliptic cylinder. On the one hand, when the environment temperature is 300 K, the proposed meta-surface can achieve perfect absorption and polarization conversion in the frequency range from 0.1 to 0.25 THz; particularly, the meta-surface absorptance can reach 99.97% and 99.92% at a frequency of 0.103 and 0.13 THz respectively, and while it is used as a polarization conversion device, the degree of circular polarization and the ellipticity angle can reach 0.986 and 44.5° at a frequency of 0.228 THz. On the other hand, when the environment temperature changes from 300 to 450 K, the absorption peak changes with the temperature, and the average absorptance reaches 96% at resonance frequency. The proposed meta-surface can be applied in many fields, such as optical sensing, imaging, and energy harvesting. Moreover, it provides a potential solution to research the integrated device in a complex electromagnetic environment. Full article
(This article belongs to the Special Issue Design of Nanostructured Optic and Optoelectronic Devices)
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9 pages, 8051 KiB  
Article
Experiment and Simulation of a Selective Subwavelength Filter with a Low Index Contrast
by Tao Li, Mohamed Asbahii, Jian-Yee Lim, Hong Xie, Chan-Wai Koh, Min-Hao Goh, Kian-Soo Ong, Hang Zhang and Ding Ding
Nanomaterials 2019, 9(10), 1497; https://doi.org/10.3390/nano9101497 - 21 Oct 2019
Cited by 3 | Viewed by 3145
Abstract
Subwavelength gratings have been of great interest recently due to their ability to eliminate multiple orders. However, high index contrast ( Δ n ∼ 3 ) is typically achieved using metals or high-index dielectrics surrounded by vacuum in order to maintain good optical [...] Read more.
Subwavelength gratings have been of great interest recently due to their ability to eliminate multiple orders. However, high index contrast ( Δ n ∼ 3 ) is typically achieved using metals or high-index dielectrics surrounded by vacuum in order to maintain good optical selectivity. Here, we theoretically propose and experimentally realize a selective subwavelength grating using an index contrast of Δ n ∼ 1.2 without vacuum. Despite its low index contrast, our simulation and experiments show that good optical selectivity is achieved using the same physics as subwavelength gratings made of high-index contrast. Such polymer-based encapsulated gratings are easier to scale up for use in large-area applications such as photovoltaics and lighting. Full article
(This article belongs to the Special Issue Design of Nanostructured Optic and Optoelectronic Devices)
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